E3
Kismile
Ambient/Room Temperature Sensor Failure
Display shows E3 and temperature reading is inaccurate or dashes appear on the display.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Defective ambient NTC sensor near control panel, Disconnected or pinched sensor harness, Oxidized connector at display/control PCB, Failed control board analog-to-digital sensor circuit
How to Fix / Troubleshooting
Safety: Unplug the wine cooler before removing the control panel or top cover.
- Locate ambient sensor: On many Kismile models, the ambient sensor is near the front control panel or air intake grille, with a small probe and two-wire harness leading to the display/control board.
- Visual inspection: Check for broken wires, crushed insulation, or a sensor that has been pulled out of its mounting clip.
- Connector check: Remove the control panel cover and verify the sensor plug is fully seated on the control PCB. Clean any corrosion with electronic contact cleaner and a soft brush.
- Test sensor: Measure resistance at room temperature and compare to the cabinet sensor if they are the same type. Replace the sensor if it is open, shorted, or significantly different from spec.
- Replace sensor: Install a compatible Kismile ambient temperature sensor, routing the wire away from hot components and moving parts.
- Control board evaluation: If a new sensor does not clear E3, the display/control board is likely defective and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Ambient Temperature Sensor (NTC Probe)
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